Minor tweak

metalgearsloth · Oct 17, 2024 · c167e66 · c167e66
1 parent aeb5089
commit c167e66
Showing 1 changed file with 1 addition and 3 deletions.
diff --git a/Robust.Shared/Serialization/Manager/SerializationManager.FlagsAndConstants.cs b/Robust.Shared/Serialization/Manager/SerializationManager.FlagsAndConstants.cs
@@ -57,13 +57,11 @@ private void InitializeFlagsAndConstants(IEnumerable<Type> flags, IEnumerable<Ty
 
                 foreach (var flagType in bitflagType.GetCustomAttributes<FlagsForAttribute>(true))
                 {
-                    if (_flagsMapping.ContainsKey(flagType.Tag))
+                    if (!_flagsMapping.TryAdd(flagType.Tag, bitflagType))
                     {
                         throw new NotSupportedException($"Multiple bitflag enums declared for the tag {flagType.Tag}.");
                     }
 
-                    _flagsMapping.Add(flagType.Tag, bitflagType);
-
                     var highestBit = bitflagType
                         .GetEnumValues()
                         .Cast<int>()